Dynamics and particle fluxes in atmospheric-pressure electronegative radio frequency microplasmas
journal contributionposted on 01.08.2016, 09:59 by Kirsty McKay, Ding-Xin Liu, Ming-Zhe Rong, Felipe IzaFelipe Iza, Michael G. Kong
We report on intricate dynamics observed in atmospheric-pressure rf electronegative discharges where electrons and anions are separated due to their different mobilities. This results in the formation of positively charged regions between an electronegative plasma core and an oscillating electron ensemble. It is found that for a given input power, the electron, ion (both positive and negative) and neutral fluxes increase as the gap size is reduced, resulting in a more efficient delivery of chemical species to a treated target.
This work was supported by the Engineering Physical Science Research Council of UK and the Fundamental Research Funds for the Central Universities of China.
- Mechanical, Electrical and Manufacturing Engineering